Cementing machine



Feb. 24, 1931. A. ANDERSSON CEMENTING MACHINE Filed Jan. 2. 1929 2Sheets-Sheet l Feb. 24, 1931.

A. ANDERSSON CEMENTING MACHINE Filed Jan. 2, 1929 2 SheetsSheet 2menting of soles to shoe uppers in the shoe Patented Feb. 24, 1931UNITED s r 'rss PATENT OFFICE ARVID ANDERSSON, OF BOSTON, MASSACHUSETTS,ASSIGNOR TO PEERLESS MACHINERY CEMENTIN G MACHINE Application filedJanuary 2, 1929. Serial No. 829,728.

This invention relates to a machine .for applying cement to leather andother materials and although designed with special ref erence to the useof latex cement for the cemanufacturing industry, yet it is capable ofvarious other uses.

Latex cement is made up of rubber globules carried by water in the formof an emulsion and is highly fluid which makes it difficult to ap lyexcept with a brush which operation is s ow and expensive.

The main object of the invention is the provision of a simple and anefiicient machine adapted "for rapidly applying latex cement to shoeparts and other kinds of work.

Another object of the invention is the provision of means in a cementingmachine for applying by pressure a highly-fluid cement to the roughenedsurfaces to be cemented in order to cause the cement to permeate thebody of the work and thereby to anchor itself therein.

A further object is the provision of means for controlling automaticallythe flowage of a highly fluid cement from a source of supply to theapplying means to secure anadequate andeven distribution of the cement.

An additional object is the provislon of means for automaticallyshutting off the supply of cement without stopping the machlne wheneverthe work is removed from the machine.

Other objects of the invention will be more specifically pointed out anddescribed hereinafter.

In its preferred embodiment, myunventiou contemplates a machinecomprising a rotary cement applying member cooperating with a rotatablework support for applying the cement and pressing it into thework tocause it to permeate the fibrous body thereof. The cement is fed byravity from a suitable receptacle arranged a ove the rotary applyingmember and controlled by a valve normally closed but openedintermittently to permit the cement to flow in successive drops or smallquantities upon said member. The machine is designed to operatecontinuously to avoid frequent starting and stopping but when the worksupport is depressed to per- .mit work to be inserted in or removed fromthe machine the means for opening the valve intermittently is thrown outof operation to sired.

Referring to the accompanying drawings illustrating the preferred formof the invention, Figure 1 is a side elevation, partly in section, of amachine constructed and adapted to be operated in accordance with myinvention; the operative parts being shown in op erative position; Fig.2 is a partial side elevation of the same with the operative parts ofthe machine in inoperative position; Fig. 3 is a transverse sectionalview on line 33 in Fig. 2 looking from left to right; Fig. 4 is an endelevation of the cement applying member; Fig. 5 is a side elevation ofthe same member; Fig. 6 is a plan view of the treadlo mechanism inlocked position and Fig. 7 is a side elevationof the same mechanism inunlocked position.

Referring to the illustrated embodiment of the invention, the frame ofthe machine is of the skeleton type comprising a base 10 of rectangularform having four corner web s'jl2 springing upwardly from the fourcorners of the base and converging to be united by a top cross web 14.The webs 12 are T-shaped in. cross section to impart the necessarystrength and rigidity to the frame but it may be made, however, in anysuitable manner. The two rear webs 12 are united at their upper ends toform an extension 16 having bored expanded portions 18 and 20 to serveas bearings for shafts and the two front webs 12 are similarly united attheir upper ends to form an extension 22, bored in alignment with thebores in the extension 16 for two shafts.

Mounted in the bores in the two extensions 16 and 22 are two shafts 23and 24,.the upper one being a main shaft and the lower onea work supportrotating shaft. F astened to one end of the main shaft 23 is a pulleywheel 25 adapted to receive a belt for operatihg the machine from anysuitable source of power. .For applying the cement to the work, a

roil 27 is fixed on the other reduced end of the main shaft by a screw28 threaded into the end thereof, any relative movement between the rolland shaft being prevented by a pin 29 in the shaft engaging a slot 30 inthe hub 31 of the roll. The periphery of the 1 roll is preferablyknurled and the roll may be 2 made 1n one piece or built up as shown ofa I number of disks.

For supplying cement to the applying roll 27 a cylindrical reservoir orreceptacle 34 ,having a cone-shaped bottom 35 is mounted above the saidroll y means of a downwardly extending integral late 36 which isfashaving oppositely disposed pairs of locking projections 42 is held onthe reservoir by a pair of clamps each comprising a screw pin 43pivotally mounted in ears 44 and a buttergy nut 46 enfiga ing saidlocldng projections.

0 permit lhn the receptacle the cover may be provide with a flangedopening 48 closed by a ca 49. L

For contro lingthe flow of cement from the receptacle a cone valve isthreaded into the apex of the cone-shaped bottom of the receptacle andis provided with a bottom opening 51 through which the cement may flowout upon the roll 27. Within the receptacle is mounted a valve spindle53 having its lower end cone shaped to fit the lower end of I the valvechamber'in the valve and at its top, the valve s indle is threaded intothe co lar portion 0 a yoke 55 pivotally mounted on a screw 56 carriedby a lever 57 which 'in turn is pivotally mounted at one end on a pin 58carried by ears 59 either attached to or forming an integral part of thecover 41. The cover may be provided with a central opening through whichthe valve spindle passes.

For operating the valve spindle to open the valve intermittently asleeved cam 60is keyed to the main shaft 23 and is provided with aseries of peripheral projections 61 spaced apart for raising a rod 62slidablyv mounted in brackets 63 and 64 on the cement receptacle. Theupper end of the rod 62 engages a screw pin 65 threaded through the endof the valve spindle lever 57 and when the rod is raised by a projectionon the cam the valve spindle is raised-by the arm 57 to open the valveto permit a small amount of cement to drop upon the roll 27. The extentof the opening is re ulated by adjusting the screw pin 65 in whicposition it is held by a set nut 66. 'A spring, 67 fastened at one endto a book 68 in the end of the valve spindle lever andat the other endto a hook 69 in valve closed. For adjusting the throw of the rod 62 acollar 70 is fastened thereto by a screw 71 and by engagement with thebracket 64 holds the rod in suspended position subject to the raisingaction of the projections on the cam. These adjustments make it possibleto control the flow of the cement from the receptacle to a very finedegree and to conform to cements of various degrees of fluidity.

For supporting the work an elongated stud 73 carrying a disk worksupport 74 is slidably mounted in the bored ends of a yoke 7 5 securedto the frame of the machine by bolts 76. The stud is inclined outwardlyso that the bevelled'portion of the upper face of the disk is parallelto the surface of the cement roll and supports and feeds the work incooperation with said roll. The work support is adapted to be rotated bythe shaft 24 through the medium of a bevelled gear 77 mounted on thestud 73 between the bifurcations of the yoke and held in position by acollar 78. The hub of the gear extends u wardly into the upperbifurcation of the yo e and the gear is keyed to the stud 73 by means ofa longitudinal slot 79 in the inner face of the hub of the gear inwhichprojects a longitudinal key 80 formed on the stud. The gear meshes witha bevelled gear spindle 81 fastened to the'end of the shaft 24 by ascrew 82 and the shaft24 is rotated from the main shaft by gears 83 and84 secured to their.

position and close to the cement ap lying roll, a lever 88 is pivotallymounte on a pin 89 set in the frame of 'the machine, one

end of the lever being bored to receive a book 90 to which is attached ahelical spring 91 having its lower end connected to a book 92 set in thebase of the frame. Upon the threaded shank of the book 90 is a butterflynut 93 for adjusting the tension of the spring. The other end of thelever 88tis split to form a yoke which partially encloses a flangedcollar 95 threaded on the lower threaded end of the work support stud73, the yoked end of the said lever being held in position by an endwasher 96. The tension of the spring 91 holds the stud and work supportin an uppermost position with the work suport close to the cementapplying member.

y turning the collar 95 on the end of the stud the work supporting diskmay be ad- For'depressing the forward end of ,the lever 88 to pull downthe worksupport for the insertion of work in or removal from themachine, the yoked end of the arm 88 is connected by a link 98 to atreadle rod 99 which in turn is connected to a treadle 100, pivotallymounted on a pin 101 in ears 102 on a plate 103 which may be fastened tothe floor. One end of said treadle carries a foot piece 104 and theother end is bored and threaded to receive a screw 105 for locking thetreadle in a depressed position when desired. The plate 103 is L-shapedand has on its rear end aprojecting block 106 fastened thereto by ascrew 107. The treadle is loosely mounted in the ears 102 so that it maybe turned on its pivot laterally to a slight degree and to lock it, theoperator after depressing the treadle gives the foot a slight impulse tothe right (see Figs. 6 and 7.) thereby bringing the end of the pin 105to rest on the upperface of the block 106. To release the treadle fromits locked position the foot piece end is moved slightly to the leftcarrying the screw 105 away from the block 106.

To eliminate the friction between the flange of the collar 95 and theyoked end of the lever 88 due to the upward pressure of that end on theflange caused by the spring 91, there is mounted on the'collar betweenthe flange and the end of the lever a ball bearing 108 comprising tworings with a series of interposed balls. The ring in engagement with theend of the lever remains stationary but the other ring rotates with thecollar.

Whenever the work support is depressed it is desirable that the feedingof cement to the applying member be stopped and means is thereforeprovided for throwing the valve operating mechanism out of operation onthe depression of the treadle. Any suitable means may be employed forthis purpose and one such means is shown comprising a bell crank lever112 pivotally mounted on a screw 113 mounted in the cross web 14. At itslower end the bell crank lever is connected to the lever 88 by. a turnbuckle link 11 1. The

end of the upper arm of the bell crank lever is in the form of a yokepartially enclosing the sleeved portion of the cam between two annularflanges 115. When the treadle is depressed that end of the lever 88connected to the bell crank lever is raised which throws the upperv armof the latter lever to the right thereby moving the cam 60 in the samedirection on the main shaft and out of engagement with the valveoperating rod 62. The continued operation of the machine thereafterproduces no effect upon the valve oft-he ce ment receptacle and itremains closed. When the treadle is raised, the operation of the bellcrank lever throws the cam back into operative position and theintermittent opening of the valve is resumed.

In the operation of the machine, the valve I operating mechanism isfirst adjusted to suit the kind of cement used and this adjustment canbe varied to a considerable degree by adj usting the screw and thecollar 70. When a cement of the character of latex is being used, thefluidity of which is nearly equal to that of water, the throw of thevalve spindle is very slight and the cement will'be fed to the rollrather in the form of drops than as a stream. With heavier cements,however, the valvespindle should have a wider range of movementdependent upon the consistency of the cement. The machine can, however,be adjusted to a variety of cements. The amount of pressure to which thework is subjected between the cementing roll and the work support isalso subject to adjustment to suit varying conditions of work, cementand results desired. f

After adjustments are made and the machine started, the operatordepresses the treadle to lower the work support and places the workthereon and against an edge gage 120 adj ustably secured in the frame byscrew 121 and then releases the treadle. The work is fed through by thecooperative action of the cementing roll and the work disk and thekcement. is pressed into the body of the wor Whenever the use of themachine is discontinued for a shortinterval the operator depresses thetreadle and gives it a slight sidewise movement to lock it whereupon thethe application of cement to. the work. By

stoppingthe feeding of cement to the rotary member when there is no workinv themachine any undue accumulation of cement upon the rotary memberis avoided. The use of my machine isespecially of advantage in applyingcement of the character of latex cement to soles which have beenroughened to be cemented to shoe uppers and especially to soles whichhave been roughened by the cutting of a plurality of parallel channels.In applying cement to soles so prepared, the rotary member first floodsthe channels with the latex cement and'then presses the cement into thebody of the sole flattening out the partitions between the channelsderstood that other kinds of quick flowing cements may be used in themachine to advantage and by adjusting the valve, the ma chine may beadapted to cements of various de ees of fluidity.

t is to be understood that the form of the invention hereinbefore shownand described 5 is for the purpose of illustration only and that myinvention may be embodied in various other forms of construction withinthe purview of the following claims.

What I claim is:

1. A cementing machine having, in combination, a rotary cement applyingmember, a rotary work-support for feeding the work, a cement reservoirfor supplying cement by gravity to said applying member, a valvecontrolling the flow of cement from said reservoir, said valve beingnormally closed,

a shaft and means including a rotary cam for intermittently opening saidvalve during each revolution of said shaft to permit cement to flow fromsaid reservoir onto said cement applying member. 2. A cementing machinehaving, in combination, a rotary cement applying member, a rotary diskwork-support for feeding the 2 work, a cement reservoir for supplyingcement by gravity to said supplying member, a normally closed valve forcontrolling the flow of cement from said reservoir, a main shaft andautomatic cam operated means for intermittently opening said valve oneach revolution of said main shaft topermit cement to flowintermittently from said reservoir onto said cement applying member.

3. A cementing machine having, in combination, a rotary cement applyingmember,

a reservoir for holding cement, a normally closed valve in saidreservoir, automatic means for opening said valve intermittently to rmitthe flow of cement onto said ap- 40 plyin member during the operation ofthe a machine and treadle operated means for throwing said automaticmeans outof operation at the will of the operator.

4. A cementing machine having, in combination, cement applying means, areservoir for holding a supply of cement, a normally closed valve insaid reservoir and adjustable automatic means for opening said valveintermittently to permit cement to flow onto said cement applying meansand treadle operated means for throwing said automatic opening means outof operation at the will of the operator.

5. A cementing machine having, in combination, a cement applying member,a reservoir located thereabove vfor holding a supply of cement andhaving an opening for the flow of cement from said reservoir onto saidapplying member, a valve for normally closing said opening and automaticmeans for opening said valve intermittently so long as the machineoperates and treadle operated means for throwing said automatic meansout of operation at the will of the operator without interfering withthe operation of the machine.

6. A cementing machine having, in combination, a cement applying member,a reservoir for holding a supply of cement and located to feed-cement bygravity to said cement applying member, a valve for controllin the flowof cement from said reservoir, said valve being normally closed, camoperated means for intermittently opening said valve, a depressible worksupport, "a treadle for depressing said work support and means forthrowing said cam operated means out of operation whenever said worksupport is depressed.

. 7. A cementing machine having, in combination, a cement applyingmember, a reservoir for holding a supply of cement and located to feedcement by gravity to said ce' ment applying member, a valve forcontrolling the fiow of cement from said reservoir, said valve beingnormally closed, cam operated means for intermittently opening saidvalve, a depressible work support, a treadle operated means fordepressin said work support, means for throwing said cam operated meansout of operation whenever said work support is depressed and means forlockin said treadle when depressed in order to hold said work support ina lowermost position and said cam operated means out of operation.

8. A cementing machine having, in combi-' nation, a reservoir forholding a supply of cement and having an outlet opening in its bottom, avalve controlling said opening and being normally closed, automaticmeans including a shaft and a cam mounted thereon for opening said valveintermittently on each revolution of said shaft and means locatedbeneath said reservoir for pressing said cement into the body portion ofthe work to be coated.

9'. A cementing machine having, in combination, a cement receptacle, avalve normally closed for controlling the flow of cement from the saidreceptacle, automatic means including a shaft and a cam mounted thereonfor opening said valve intermittently on each revolution of said shaft,cement applying means beneath said receptacle and a spring pressed worksupport for pressing the work against said cement applying means toforce the cement into the body of the work.

10. A cementing machine having, in combination, a cement receptacle, avalve normally closed for controlling the flow of cement from the saidreceptacle, automatic means including a shaft and a cam mounted thereonfor opening said valve intermittently on each revolution of said shaft,cement applying means beneath said receptacle, 9. spring pressed worksupport for pressing the work against said cement applying means toforce the cement into the body of the work and means for rotating saidcement applying means and said work support to feed the work. v

11. A cementing machine having, in combination, a cement applyingmember, a cement reservoir, a normally closed valve for controlling theflow of cement from said reservoir, cam operated means forintermittently opening said valve and treadle operated means forthrowing said cam operated means out of operation without stopping themachine.

- 12. A cementing machine having, in combination, a cement applyingmember, a cement reservoir, a normally closed valve for controlling theflow of cement from said reservoir, a main shaft and means operated bysaid main shaft for opening said valve for a se ries of intermittentperiods during each revolution of said main shaft.

13. A cementing machine having, in combination, a cement applyingmember, a rotary disk work support for feeding the work, a

cement reservoir, a normally closed valve for controllin the flow ofcement from said reservoirfa s aft, a cam mounted on said shaft and.provided with a plurality ofperipheral cam surfaces and meansintermediate said valve and said cam adapted when engaged by a camsurface to open said valve.

14, A cementing machine having, in combination, a cement applyingmember, a cement reservoir, a normallyclosed valve for controlling theflow of cement from said reservoir a main shaft, means, including a camprovided with a plurality of-peripheral cam surfaces, operated by saidmain shaft for op said valve for a series of intermittent periods duringeach revolution of said main shaft and means within the control of theoperator for throwing said cam out of operation without stopping themachine.

15. A cementing machine having, in combination, a cement appl mg member,a cement reservoir, a norma y closed valve for controlling the flow ofcement from said reservoir, a main shaft, means, including a camslidably mounted on said main shaft,

operated by said main shaft for opening said valve for a. series ofintermittent periods the number of cam surfaces on said cam during eachrevolution of said shaft.

17. A cementing machine having, in combination, a cement applyingmember, a cement reservoir, a normally closed valve for controllingthe'flow of cement from said reser voir, a main shaft, means, includinga cam slidably mounted on said main shaft, operated by said main shaftfor opening said valve for a series of intermittent periods during eachrevolution of said main shaft and means for sliding said cam out ofoperative position to hold said valve closed during the revolution ofsaid shaft.

18. In a cementing machine, the combination of areservoir for cementhaving a discharge opening, a lever pivotally mounted at one end on saidreservoir, a valve spindle pivotall connected at its upper end to saidlever or closing said opening in said reservoir, a main shaft, a cammounted on said main shaft provided. with a plurality of peripheral camsurfaces, a vertical rod having its lower end in engagement with saidcam and its upper end in engagement with said lever-and means forrotating said main shaft to open said valve at intermittent periodsduring each revolution thereof.

In witness whereof, I have hereunto set my hand this twenty-ninth day ofDecember, 1928.

ARVID ANDERSSON.

"said shaft and provided with a plurality of peripheral cam surfaces,means intermediate said valve and said cam whereby the rotation of saidshaft opens said valve for a series of intermittent periods equal innumber to

